ML18010A604
| ML18010A604 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 04/16/1992 |
| From: | Mccarthy D CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NLS-92-113, NUDOCS 9204220152 | |
| Download: ML18010A604 (7) | |
Text
ACCELERATED DI TRIBUTION DEMONS TION SYSTEM
) ~
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9204220152 DOC.DATE: 92/04/16 NOTARIZED:
NO FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina AUTH.NAME AUTHOR AFFILIATION MCCARTHY,D.C.
Carolina Power 6 Light Co.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Documents issues discussed during 920406 telcon re emergency diesel generator A lube oil sample 46,per NRC 911209 request. Predict equipment condition rept encl.
DISTRIBUTION CODE:
A025D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Seismic Qualification of Equipment in Operating Plants A-46 NOTES:Application for permit renewal filed.
DOCKET 05000400 05000400 D
A RECIPIENT ID CODE/NAME INTERNAL: ACRS NRR/DET/ESGB NRR/DST/SICB NRR/DST/SRXB OGC/HDS1 PD 13 PD EXTERNAL: NRC PDR COPIES LTTR ENCL 6
6 1
1 1
1 1
1 1
1 1
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1 RECIPIENT ID CODE/NAME NRR/DET/CHENG i P NRR/DST/S ELB NRR/DST/S PLB NRR/TROTTIER,E PDW FILE COPIES LTTR ENCL 1
1 1
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1 2
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D D
NOTE TO ALL"RIDS" RECIPIENTS:
D D
PLEASE HELP US TO REDUCE WAFEE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAMEFROM DISI'RIBUTION LIS1S FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 19 ENCL 19
I
Carolina Power & Light Company tAPR 16 i992 SERIAL:
NLS-92-113 United States Nuclear Regulatory Commission ATTENTION:
Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO.
50-400/LICENSE NO. NPF-63 SUPPLEMENTAL CLARIFICATION REGARDING AN "A" EMERGENCY DIESEL GENERATOR LUBE OIL SAMPLE Gentlemen:
The purpose of this letter is to document a teleconference between Carolina Power
& Light Company (CP&L) and the NRC staff on April 6, 1992 regarding the "A" Emergency Diesel Generator (EDG) lube oil sample ¹46.
On January 13,
- 1992, CP&L submitted a response to a December 9,
1991 NRC letter requesting additional information regarding Shearon Harris Nuclear Power Plant (SHNPP) diesel generator inspection requirements and testing.
Upon reviewing CP&L's response, the NRC staff requested in the April 6 " teleconference that CP&L clarify one statement in an enclosure to the January letter.
With regard to the Equipment Condition Report for "A" EDG lube oil sample ¹46, what was the basis for the conclusion stated in "Discussion of Results" that the EDG was operating normally, given that the Wear Particulate Concentration (WPC) exceeded the Alarm BH value?
(The Equipment Condition Report is included as an enclosure to this letter for ease of reference.)
CP&L Res onse The Alarm Band High (Alarm BH) limit is the sum of the mean of the previous sample values plus two st:andard deviations.
It is used as a
trigger to indicate that engine conditions have changed.
In this case tne change was the result of an extended teardown outage of the diesel to perform the required one-time five year TDI Diesel inspections.
This alarm limit requires a detailed analysis of the lube oil when elevated levels of wear particles or contaminants are present: in the oil.
These additional analyses are performed to identify the specific types and quantities of wear particles to det:ermine if an actual wear problem exists.
For lube oil sample ¹46, the wear particle concentration of 18.4 exceeded the Alarm BH of 18.3.
The results from the additional analyses are displayed at, the bottom of the sample report under the heading "Analytical Result:s."
The results are graphical representations of the types and quantities of ferrous and non-ferrous wear particles, and contaminants in the lube oil.
411 Fayettevilte Street o P. O. Box 1551 o Raleigh. N. C. 27602 9A 9204220152 9204ih PDR ADOCK 05000400 P
PDR L
1
Document Control ~k NLS-92-113 / Page&
e
'4e V
Based on the quantitative identification of normal rubbing wear particles, oxide wear particles and dirt present in the oil, the monitoring service reported in the Discussion of Results
- Section, that this unit is operating normally."
Carolina Power
& Light Company concluded that the reported WPC count was satisfactory based on this statement and on prior experience which indicates that the WPC is normally elevated following extended maintenance outages that involve diesel teardown.
Questions regarding this matter may be referred to Mr. R.
W. Prunty at (919) 546-7318.
Yours very truly, SDC/sdc Enclosure cc:
Mr. S.
D. Ebneter Ms. B. L. Mozafari Mr. J.
E. Tedrow D: C. McCarthy
- Manager, Nuclear Licensing
ENCLOSURE SERIAL:
NLS-92-113 Page 1 of 1 EQUIPMENT CONDITION REPORT..
A ~
14~
A P/P+/7/C T CAROLINAPOWER 5 LIGHTCO.
SHEARON HARRIS NUCLEAR POWER SAMPLE ID:
SAMPLE DESC:
MANUFACTURER:
LUBRICANT:
RESERVOIR CAP:
TIMEON LUBE:
MACHINETIME:
SHNPP-AZDG A'MERGENCYDIESEL GENERATOR ENTERPRISE MOBILGUARD 412 1,500.0 GAL [ 5,677.5 LITERS ]
NOT PROVIDED NOT PROVIDED SAMPLE DATE: 04/14/91 REC'D DATE: 05/06/91 REPORT DATE: 05/08/91 1st SAMPLE: 12/20/86 PREY SAMPLE: 03/23/91
[N]
NO. SAMPLES:
46 PROGRAM:
A1 Recommendatlon:
Continue with normal operation. Sample at routine intervals.
Discussion of Results:
Although the wear particle concentration has increased from 3.6 to 18.4, and is higher than the established baseline for this unit, analytical results indicate that this unit is operating normally, This sample only contains limited to moderate amounts of black oxides, red oxides, lubricant degradation, and dirt.
1A IIXI 10 Wear Particle Concentration:
0 Fc 1ec 05/0F/00 210 250 aUANTrrzTtvE RESULTS:
WPC:
18.4 DL 12.5 DS:
5.9
~:
10e Std Der.
3.8 e.s Alarm BH:
18.3 Alarm BL 3.0 Alarm MH:
NOT SET Alarm ML NOT SET Viacoeity (cSt):
14.8 Water (%):
NEG RetrtgeranL NEG VIscosity (spec. 14.scst tccc)'2 0
FO 140 210 250 000 05/cr/M Oe/22/Ql Analytical Results:
FEr5KUs WEARPARICLES 0 llAX SIZE 10
<15 NON FERROUS wEARpA/rrxxfs 0 Nenner Ruble Severe Sony OIA5nc Soadng MAX SIZE 10 RAlea5 5
10 N/A N/A 0 Copper C) White 0 Babbitt 000001394141 001950 JAM-149117 91454106